Difference between revisions of "HypervisorSupportMatrix/Requirements"
John Garbutt (talk | contribs) (→Proposed Hypervisor Feature Requirements) |
John Garbutt (talk | contribs) (→Proposed Hypervisor Feature Requirements) |
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|Snapshot | |Snapshot | ||
− | |Yes | + | |?Yes |
− | |Basic function for bootstrapping environments | + | |Basic function for bootstrapping environments (but ironic doesn't support this) |
|- | |- | ||
|iSCSI backing | |iSCSI backing |
Latest revision as of 18:25, 30 July 2014
Proposed Hypervisor Feature Requirements
The list below is not comprehensive, but is intended to provide a baseline set of features that hypervisors must implement. Not all of the items listed below may be required; more advanced features are listed to support discussion of where we draw the line.
Feature | Required | Why |
Launch | Yes | We don't import running guests, which makes this critical |
Reboot | Yes | It's a pretty core operation that should be supportable everywhere (soft + hard?) |
Shutdown/Start | Yes | Seems important too - graceful shutdown vs power plug pull? (graceful!) |
Terminate | Yes | 'Cause |
Cold Migrate | Yes | Admins need to move instances around a bit as things die |
Resize | ?Yes | When billed by the minute, ability to shrink/grow is important |
Rescue | Yes | Seems like important user-facing ability |
Pause/Unpause | No | Some hypervisors don't support this |
Suspend/Resume | No | Some hypervisors don't support this |
Inject networking | No | Doesn't make sense everywhere (?) |
Inject files | No | Trying to move away from this anyway |
Serial Console | No | Doesn't make sense everywhere |
VNC Console | No | Doesn't make sense everywhere |
SPICE Console | No | Limited to single-hypervisor support |
RDP Console | No | Limited to single-hypervisor support |
Attach/Detach Volume | ?Yes | Volumes are the default persistence mechanism |
Live Migration | No | Not all hypervisors will support this |
Snapshot | ?Yes | Basic function for bootstrapping environments (but ironic doesn't support this) |
iSCSI backing | No | |
FibreChannel Backing | No | |
Set admin password | No | Overlaps with rescue, not supported everywhere |
Boot from glance image | Yes | This is basic expected behavior |
Boot from volume | ?Yes | If volumes work, this should work too |
Works with nova-network | No | The (distant) future is neutron |
Works with neutron | Yes | Neutron is openstack's networking platform, so must be supported |
Supports configdrive | Yes | This is our preferred future file-based configuration mechanism |
Supports Metadata Service | ?No | This seems dependent on the network stack |
Evacuate | No | |
Volume Swap | No | Not supported everywhere |
Attach/Detach NIC | No | Not supported everywhere |